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Diversity of culturable psychrotrophic bacteria from arctic soil samples

The study of psychrotrophic microorganisms has gained interests in recent times because cold region serves as sources of unique microorganisms for biotechnological applications. The present study was aimed at investigating the diversity of culturable psychrotrophic bacteria associated with four froz...

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Main Author: Idris, Zainab Ladidi
Format: Thesis
Language:English
Published: 2015
Subjects:
R Medicine (General)
Online Access:http://eprints.utm.my/id/eprint/54636/25/ZainabLadidiIdrisMFBME2015.pdf
http://eprints.utm.my/id/eprint/54636/
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spelling my.utm.546362020-10-21T01:24:50Z http://eprints.utm.my/id/eprint/54636/ Diversity of culturable psychrotrophic bacteria from arctic soil samples Idris, Zainab Ladidi R Medicine (General) The study of psychrotrophic microorganisms has gained interests in recent times because cold region serves as sources of unique microorganisms for biotechnological applications. The present study was aimed at investigating the diversity of culturable psychrotrophic bacteria associated with four frozen arctic soil samples collected from different points in Svalbard Hornsund. A total of 40 psychrophilic and psychrotolerant bacteria were isolated under aerobic conditions at 20°C. The mean viable bacterial count ranged from 1.2 x 104 to 5.4 x 105 cfu/mL. The isolates were analysed on the basis of morphological, physiological and molecular characteristics. The results of Gram stain reactions showed that Gram negative bacteria (n = 24) were predominant in the samples. Based on the 16S rRNA gene sequence analysis, the isolates (n = 40) could be categorised into five genera, comprising of Pseudomonas as the most abundant followed by Arthrobacter, Bacillus, Flavobacterium, Sphingomonas belonging four phyla (Proteobacteria, Actinobacteria, Firmicutes and Flavobacteria) and one unclassified Bacterium. 2015-01 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/54636/25/ZainabLadidiIdrisMFBME2015.pdf Idris, Zainab Ladidi (2015) Diversity of culturable psychrotrophic bacteria from arctic soil samples. Masters thesis, Universiti Teknologi Malaysia, Faculty of Biosciences and Medical Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86603
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic R Medicine (General)
spellingShingle R Medicine (General)
Idris, Zainab Ladidi
Diversity of culturable psychrotrophic bacteria from arctic soil samples
description The study of psychrotrophic microorganisms has gained interests in recent times because cold region serves as sources of unique microorganisms for biotechnological applications. The present study was aimed at investigating the diversity of culturable psychrotrophic bacteria associated with four frozen arctic soil samples collected from different points in Svalbard Hornsund. A total of 40 psychrophilic and psychrotolerant bacteria were isolated under aerobic conditions at 20°C. The mean viable bacterial count ranged from 1.2 x 104 to 5.4 x 105 cfu/mL. The isolates were analysed on the basis of morphological, physiological and molecular characteristics. The results of Gram stain reactions showed that Gram negative bacteria (n = 24) were predominant in the samples. Based on the 16S rRNA gene sequence analysis, the isolates (n = 40) could be categorised into five genera, comprising of Pseudomonas as the most abundant followed by Arthrobacter, Bacillus, Flavobacterium, Sphingomonas belonging four phyla (Proteobacteria, Actinobacteria, Firmicutes and Flavobacteria) and one unclassified Bacterium.
format Thesis
author Idris, Zainab Ladidi
author_facet Idris, Zainab Ladidi
author_sort Idris, Zainab Ladidi
title Diversity of culturable psychrotrophic bacteria from arctic soil samples
title_short Diversity of culturable psychrotrophic bacteria from arctic soil samples
title_full Diversity of culturable psychrotrophic bacteria from arctic soil samples
title_fullStr Diversity of culturable psychrotrophic bacteria from arctic soil samples
title_full_unstemmed Diversity of culturable psychrotrophic bacteria from arctic soil samples
title_sort diversity of culturable psychrotrophic bacteria from arctic soil samples
publishDate 2015
url http://eprints.utm.my/id/eprint/54636/25/ZainabLadidiIdrisMFBME2015.pdf
http://eprints.utm.my/id/eprint/54636/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86603
_version_ 1681489469793894400
score 13.211869

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